The Evaluation of Contrast-to-Noise Ratio in CT Images Using Different Parameters of Gold Nanoparticles versus Omnipaquedoi:10.18502/fbt.v9i4.10420GOLD nanoparticlesCOMPUTED tomographyPOLYETHYLENE glycolNANOPARTICLESKhademi, SaraAzimian, HoseinGhadiri, Hossein...
2 Random Noise and Contrast-to-Noise Ratio Random noise, also called statistical noise or quantum mottle, is present everywhere in a nuclear medicine image. Even when the size of an object is substantially larger than the limiting spatial resolution of the image, statistical noise can impair dete...
To determine the iodine contrast-to-noise ratio (CNR) for abdominal computed tomography (CT) when using energy domain noise reduction and virtual monoenergetic dual-energy (DE) CT images and to compare the CNR to that attained with single-energy CT at 80, 100, 120, and 140 kV.This HIPAA-...
The CT number, image noise, and contrast-to-noise ratio in main PV were measured. The maximum intensity projection and volume-rendering images were used... W Wang,J Huang,W Ai,... - 《Journal of Computer Assisted Tomography》 被引量: 2发表: 2018年 加载更多来源...
Photon counting spectral breast CT: Effect of adaptive filtration on CT numbers, noise, and contrast to noise ratioPhoton counting spectral breast CT: Effect of adaptive filtration on CT numbers, noise, and contrast to noise ratiodoi:10.1118/1.4800504Photon...
Dynamic CT scans of different scan times and spiral CT (Somatom Plus; Siemens AG, Erlangen) were performed with 8 mm collimations (120 kV) utilizing the same acquisition mode and reconstruction algorithm. Of the six contrast formulas the contrast-to-noise ratio (CNR) yielded the best ...
High contrast to noise ratio (CNR) using CO2 for colonic distension in 3.0 Tesla Magnetic Resonance Colonography (MRC)Purpose / introductionMagnetic Resonance Colonography (MRC) is studied as screening technique for colorectal cancer. The lack of ionizing radiation and the supe...
A statistical-based automatic detection of a low-contrast object in the ACR CT phantom for measuring contrast-to-noise ratio of CT images Purpose . This study aimed to develop a new method for automated contrast-to-noise ratio (CNR) measurement using the low-contrast object in the ACR compute...
Monte Carlo Evaluation of the Relationship between Absorbed Dose and Contrast-to-Noise Ratio in Coherent Scatter Breast CT Purpose: The objective of this work was to evaluate the advantages and shortcomings associated with Coherent Scatter Computed Tomography (CSCT) systems for... B Ghammraoui - ...
Virtual monoenergetic imaging (VMI) is a new application in dual〆nergy CT (DECT). We evaluated the potential for contrast dose reduction in preoperative aortic CTA using VMI. To evaluate performance in terms of image quality and vessel shape, we quantified the contrast‐to‐noise ratio (CNR) ...